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883849ee32
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-o -iname "*.h" \
-o -iname "*.c" \
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}
convert MOZ_OVERRIDE override
convert MOZ_FINAL final
117 lines
4.1 KiB
C++
117 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef _nsDiskCacheDevice_h_
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#define _nsDiskCacheDevice_h_
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#include "mozilla/MemoryReporting.h"
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#include "nsCacheDevice.h"
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#include "nsDiskCacheBinding.h"
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#include "nsDiskCacheBlockFile.h"
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#include "nsDiskCacheEntry.h"
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#include "nsIFile.h"
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#include "nsIObserver.h"
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#include "nsCOMArray.h"
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class nsDiskCacheMap;
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class nsDiskCacheDevice final : public nsCacheDevice {
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public:
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nsDiskCacheDevice();
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virtual ~nsDiskCacheDevice();
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virtual nsresult Init();
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virtual nsresult Shutdown();
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virtual const char * GetDeviceID(void);
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virtual nsCacheEntry * FindEntry(nsCString * key, bool *collision);
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virtual nsresult DeactivateEntry(nsCacheEntry * entry);
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virtual nsresult BindEntry(nsCacheEntry * entry);
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virtual void DoomEntry( nsCacheEntry * entry );
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virtual nsresult OpenInputStreamForEntry(nsCacheEntry * entry,
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nsCacheAccessMode mode,
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uint32_t offset,
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nsIInputStream ** result);
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virtual nsresult OpenOutputStreamForEntry(nsCacheEntry * entry,
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nsCacheAccessMode mode,
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uint32_t offset,
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nsIOutputStream ** result);
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virtual nsresult GetFileForEntry(nsCacheEntry * entry,
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nsIFile ** result);
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virtual nsresult OnDataSizeChange(nsCacheEntry * entry, int32_t deltaSize);
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virtual nsresult Visit(nsICacheVisitor * visitor);
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virtual nsresult EvictEntries(const char * clientID);
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bool EntryIsTooBig(int64_t entrySize);
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf);
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/**
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* Preference accessors
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*/
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void SetCacheParentDirectory(nsIFile * parentDir);
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void SetCapacity(uint32_t capacity);
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void SetMaxEntrySize(int32_t maxSizeInKilobytes);
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/* private: */
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void getCacheDirectory(nsIFile ** result);
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uint32_t getCacheCapacity();
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uint32_t getCacheSize();
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uint32_t getEntryCount();
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nsDiskCacheMap * CacheMap() { return &mCacheMap; }
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private:
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friend class nsDiskCacheDeviceDeactivateEntryEvent;
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friend class nsEvictDiskCacheEntriesEvent;
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friend class nsDiskCacheMap;
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/**
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* Private methods
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*/
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inline bool IsValidBinding(nsDiskCacheBinding *binding)
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{
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NS_ASSERTION(binding, " binding == nullptr");
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NS_ASSERTION(binding->mDeactivateEvent == nullptr,
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" entry in process of deactivation");
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return (binding && !binding->mDeactivateEvent);
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}
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bool Initialized() { return mInitialized; }
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nsresult Shutdown_Private(bool flush);
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nsresult DeactivateEntry_Private(nsCacheEntry * entry,
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nsDiskCacheBinding * binding);
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nsresult OpenDiskCache();
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nsresult ClearDiskCache();
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nsresult EvictDiskCacheEntries(uint32_t targetCapacity);
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/**
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* Member variables
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*/
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nsCOMPtr<nsIFile> mCacheDirectory;
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nsDiskCacheBindery mBindery;
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uint32_t mCacheCapacity; // Unit is KiB's
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int32_t mMaxEntrySize; // Unit is bytes internally
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// XXX need soft/hard limits, currentTotal
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nsDiskCacheMap mCacheMap;
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bool mInitialized;
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bool mClearingDiskCache;
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};
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#endif // _nsDiskCacheDevice_h_
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